Andrew Hodgson wrote:
Hi,
I am running Postfix on Ubuntu 9.04.
I have a primary MX server which does antispam/av etc, and the Postfix
system which is receiving the messages for the mailing lists etc.
I want to stop people from sending directly to the Postfix server, and
only allow connections to the relevant domains from the primary MX servers.
Is this possible?
Thanks.
Andrew.
Use a check_client_access map to control what IPs can send
mail to your server.
# main.cf
smtpd_client_restrictions =
check_client_access cidr:/etc/postfix/allowed_clients
# reject all unlisted clients
reject
# allowed_clients
192.168.3.0/24 OK
192.0.2.12 OK
...
-- Noel Jones
